WO2021068960A1

WO2021068960A1 - Experimental system and method capable of simulating gear transmission non-inertial system environment

Info

Publication number: WO2021068960A1
Application number: PCT/CN2020/120340
Authority: WO
Inventors: 魏静; 姜东�; 张爱强
Original assignee: 重庆大学
Priority date: 2019-10-12
Filing date: 2020-10-12
Publication date: 2021-04-15
Also published as: US20210190635A1; CN110823562A; US11428605B2; CN110823562B

Abstract

An experimental system and method capable of simulating a gear transmission non-inertial system environment, relating to the field of aviation power transmission. The experimental system capable of simulating a gear transmission non-inertial system environment comprises a gear transmission experiment table (6), a linear motion platform (4) and an electric vibration table (12). The linear motion platform (4) drives the gear transmission experiment table (6) to make a horizontal linear acceleration motion to simulate a gear transmission linear acceleration non-inertial system environment. The electric vibration table (12) drives the gear transmission experiment table (6) to rotate back and forth around a horizontal shaft (2) so as to simulate a gear transmission pitching non-inertial system environment. The electric vibration table (12) drives the gear transmission experiment table (6) to rotate back and forth around a vertical shaft (3) so as to simulate a gear transmission yaw non-inertial system environment. A dynamic experiment of a gear transmission system when the foundation is fixed may be carried out, non-inertial excitation of the gear transmission system during flight maneuvering of an aircraft may be simulated, and the blank in experimental research in the field of aviation power transmission taking a non-inertial system environment condition into consideration is filled.

Description

An experimental system and method capable of simulating gear transmission non-inertial system environment

Technical field

The invention relates to the field of aviation power transmission, in particular to an experimental system and method capable of simulating gear transmission non-inertial system environment.

Background technique

In a non-inertial environment, the gear transmission system is excited by complex additional loads, its vibration characteristics will change, and even vibration instability will occur, which will threaten the stable operation of the aircraft.

For this reason, domestic scholars have done a lot of research on the dynamic characteristics of the gear transmission system during maneuvering flight through theory and have achieved many results; however, the current domestic gear transmission system test benches do not consider the factor of basic motion and cannot simulate the gear transmission system. The state of motion in a flying non-inertial system environment.

In the field of aero-engine technology, the existing design simulation basic motion aero-engine dual-rotor system model test bed uses multiple motors to drive different transmission shafts to simulate pitching and yaw motions, but they cannot provide impact and random excitation, nor can they Simulate the linear acceleration motion environment; the existing design of the flexible rotor test bench that simulates the basic angular motion can provide a variety of excitations through the electromagnetic vibration table, but it cannot simulate the linear acceleration motion environment.

In order to more realistically carry out the experimental research on the dynamic characteristics of the gear transmission in the non-inertial environment, it is necessary to design an experimental system and method that can simulate the non-inertial environment of the gear transmission.

Summary of the invention

The purpose of the present invention is to provide an experimental system and method that can effectively simulate the motion state of the gear transmission system during the maneuvering of the aircraft and carry out experimental research on the dynamic characteristics of the gear transmission in the flight non-inertial system environment.

The technical solution adopted to achieve the purpose of the present invention is as follows: an experimental system capable of simulating a gear drive non-inertial system environment, including a gear drive experiment table, a manual cross slide group, a linear motion platform and an electric vibration table.

The gear transmission test bench includes a drive motor, a motor support I, a coupling, a torque speed sensor I, an elastic shaft, a gear transmission system, a torque speed sensor II, a motor support II and a load motor.

The driving motor is installed on the motor support I, and the driving motor transmits power to the gear transmission system through two couplings, a torque speed sensor I, and an elastic shaft.

The load motor is installed on the motor support II, and the load motor applies the load torque to the gear transmission system through two couplings and a torque speed sensor II. The gear transmission system is located between the drive motor and the load motor.

The manual cross slide group includes a manual cross slide I and a manual cross slide II. The motor support I and the torque speed sensor I are both fixed on the manual cross slide I. The torque speed sensor I collects the input and output vibration signals when the driving motor is running, and transmits the signals to the control system. The motor support II and the torque speed sensor II are both fixed on the manual cross slide Ⅱ. The torque speed sensor II collects the input and output vibration signals when the load motor is running, and transmits the signals to the control system.

There is a gap S between the manual cross slide I and the manual cross slide II, and both the manual cross slide I and the manual cross slide II are fixed on the supporting plate III. The lower end of the gear transmission system passes through the gap S and is fixed to the support plate III.

The lower surface of the support plate III is connected with a linear motion platform, and the linear motion platform is provided with a motion measurement system for measuring its position, speed and error, and the motion measurement system transmits the measurement results to the control system. A supporting plate II is connected to the lower end of the linear motion platform, and the supporting plate II is fixed on the upper surface of the supporting plate I.

The supporting plate I is a rectangular plate, the upper surface of the supporting plate I is provided with an acceleration sensor, and the two ends of the supporting plate I are respectively marked as the A end and the B end. The supporting plate II is fixed on the upper surface of the supporting plate IA end, and the lower surface of the supporting plate IA end is connected with a vertical shaft. The lower end of the vertical shaft is connected with a horizontal shaft, and the horizontal shaft is fixed on the turntable base.

The rotation axes of the driving motor, the load motor, and the horizontal shaft are all parallel to the movement direction of the linear motion platform. The connecting line between the IA end and the B end of the supporting plate is perpendicular to the rotation axis of the horizontal shaft.

The lower surface of the IB end of the supporting plate is provided with a connecting clamp, and the connecting clamp is a rigid connecting rod. The lower end of the connecting clamp is connected with the electric vibrating table, and the electric vibrating table is fixed on the base of the vibrating table.

When working, the electric vibrating table drives the supporting plate I to rotate around the horizontal axis through the connecting fixture, and the linear motion platform and the gear transmission test bench installed on the supporting plate I rotate around the horizontal axis together with the supporting plate I.

An experimental system capable of simulating a gear drive non-inertial system environment includes a gear drive experiment table, a manual cross slide group, a linear motion platform and an electric vibration table.

The lower surface of the IB end of the supporting plate is provided with a connecting clamp, and the connecting clamp includes a push rod, a spring, a cam, a wedge block and a guide.

The push rod is an L-shaped rod, and the push rod includes a support rod I and a support rod II that are vertically connected, and the free end of the support rod I is connected to the lower surface of the end of the support plate IB. The supporting rod II is parallel to the rotation axis of the horizontal shaft, the free end of the supporting rod II is connected with a baffle plate, and a cam is hinged on the plate surface of the baffle facing away from the supporting rod II.

Guides are fixedly arranged above and below the supporting rod II, and the supporting rod II moves horizontally along the guide. A spring is connected between the two guides and the baffle.

The contour edge of the cam is in contact with the wedge surface of the wedge block, the lower end of the wedge block is fixed on the electric vibration table, and the electric vibration table is fixed on the base of the vibration table.

When working, the electric vibrating table outputs a sinusoidal excitation in the vertical direction, and the wedge blocks move up and down together with the electric vibrating table. When the wedge blocks move up, the wedge blocks push the support plate I through the cam and push rod to rotate counterclockwise around the vertical axis. , The spring is gradually compressed. When the wedge-shaped block moves downward, the push rod and the baffle move in the opposite direction under the action of the spring force, and at the same time, the supporting plate I is pulled to rotate clockwise around the vertical axis.

The linear motion platform and the gear transmission test bench installed on the supporting plate I rotate with the supporting plate I around the vertical axis.

Further, the transmission mode of the gear transmission system is parallel shaft gear transmission or planetary gear transmission.

Further, the linear motion platform includes a guide rail, a mover part, a stator part, a block, a carriage and a base, and a motion measurement system. The base is a rectangular plate fixed on the supporting plate II, and the length direction of the base is the moving direction of the linear motion platform.

The side wall of the base along its length direction is provided with an induction strip of the motion measurement system, and the upper surface of the base is provided with two guide rails, a stator part and two stoppers. The stator part is in the shape of a rectangular plate, the guide rail and the stator part are arranged along the length direction of the base, the stator part is located between the two guide rails, and the height of the guide rail is smaller than the height of the stator part. The two stoppers are respectively located at the two ends of the base.

The sliding frame includes a sliding plate and four sliding rods under the sliding plate. The upper surface of the sliding plate is connected with the supporting plate III, and the lower surface is provided with a mover part, which is located directly above the stator part. The lower ends of the four sliding rods are inlaid and matched with the two guide rails, so that the sliding frame moves linearly on the horizontal plane along the guide rails.

A sensor of the motion measurement system is arranged on the side wall of one of the sliding rods facing the induction strip. When the sliding frame moves, the sensor of the motion measurement system and the induction strip sense each other to measure the position, speed and error of the sliding frame.

Using the above-mentioned experimental system to simulate the non-inertial system environment of gear transmission linear acceleration, the experimental method includes the following steps:

1) Connect the experimental equipment to ensure that the connection of each part is stable.

2) Debug the gear transmission test bench and the linear motion platform to ensure the normal operation of the gear transmission test bench and the linear motion platform.

3) Start the drive motor and gradually increase the speed of the gear transmission system to the speed required by the experiment. The load motor is started, and the load motor loads the gear transmission system with the load torque required by the experiment.

4) Start the linear motion platform to accelerate to the acceleration required by the experiment, and the linear motion platform drives the support plate III and the gear transmission test bench to perform linear acceleration motion.

5) During linear acceleration, record the dynamic response of the gear transmission system.

6) Repeat steps 4) and 5), adjust the acceleration of the linear motion platform through the control system, and record the dynamic response of the gear transmission system under the same working condition under different linear acceleration non-inertial system environments.

7) Repeat steps 3), 4), 5) and 6), adjust the speed of the drive motor, the load of the load motor and the acceleration of the linear motion platform through the control system, and record the gear transmission system under different working conditions in different straight lines. Accelerate the dynamic response in a non-inertial system environment.

The experimental method of using the above-mentioned experimental system to simulate the non-inertial system environment of the gear transmission pitch includes the following steps:

2) Debug the gear transmission test bench and the electric vibration table to ensure the normal operation of the gear transmission test bench and ensure that the support plate I rotates normally around the horizontal axis.

4) Start the electric vibrating table, the electric vibrating table outputs the excitation required by the experiment, and the linear motion platform and the gear transmission experimental table installed on the supporting plate I rotate around the horizontal axis together with the supporting plate I.

5) During the rotation of the supporting plate I, record the dynamic response of the gear transmission system.

6) Repeat steps 4) and 5), adjust the size and type of excitation output by the electric vibration table through the control system, and record the dynamic response of the gear transmission system under the same working condition under different pitch non-inertial environment.

7) Repeat steps 3), 4), 5) and 6), and adjust the speed of the drive motor, the load of the load motor, and the size and type of excitation output by the electric vibrating table through the control system, and record the gears under different working conditions The dynamic response of the transmission system under different pitch non-inertial environment.

The experimental method of using the above-mentioned experimental system to simulate the non-inertial system environment of gear transmission yaw includes the following steps:

2) Debug the gear transmission test bench and the electric vibration table to ensure the normal operation of the gear transmission test bench and ensure that the support plate I rotates normally around the vertical axis.

4) Start the electric vibrating table, the electric vibrating table outputs the excitation required by the experiment, and the linear motion platform and the gear transmission experimental table installed on the supporting plate I rotate around the vertical axis together with the supporting plate I.

5) Record the dynamic response of the gear transmission system during rotation.

6) Repeat steps 4) and 5), adjust the excitation type and size of the electric vibration table through the control system, and record the dynamic response of the gear transmission system under the same working condition under different yaw non-inertial environment.

7) Repeat steps 3), 4), 5) and 6), and adjust the speed of the drive motor, the load of the load motor, and the size and type of excitation output by the electric vibrating table through the control system, and record the gears under different working conditions The dynamic response of the transmission system under different yaw non-inertial system environments.

The technical effect of the present invention is unquestionable. The system of the present invention can truly simulate the working conditions of the aircraft internal gear transmission system under linear acceleration, pitch, yaw and other motion attitudes, and can realize precise control of the motion attitude. The experimental platform and experimental method of the present invention can not only carry out the dynamic experiment of the basic fixed gear transmission system, but also can simulate the non-inertial excitation of the gear transmission system during the maneuvering of the aircraft, which makes up for the aviation that considers the environmental conditions of the non-inertial system. There is a gap in experimental research in the field of power transmission.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, without creative labor, other drawings can be obtained based on these drawings.

Figure 1 is a front view of the system of the present invention;

Figure 2 is a left side view of the system of the present invention;

Figure 3 is a top view of the gear transmission test bench;

Figure 4 is a top view of a linear motion platform;

Figure 5 is the left view of the connecting fixture when simulating yaw motion;

Figure 6 is a schematic diagram of a parallel shaft gear transmission system;

Figure 7 is a schematic diagram of a planetary gear train gear transmission system.

In the picture: turntable base 1, horizontal axis 2, vertical axis 3, linear motion platform 4, guide rail 401, mover part 402, stator part 403, stop block 404, carriage 405, base 406, sensor strip 407, sensor 408. Manual cross slide group 5, manual cross slide Ⅰ501, manual cross slide Ⅱ502, gear transmission experiment table 6, drive motor 601, motor support 602, coupling 603, torque speed sensor Ⅰ604, elastic shaft 605, gear Transmission system 606, bearing seat 6061, driving wheel 6062, bearing 6063, driven wheel 6064, ring gear 6065, sun gear 6066, planet carrier 6067, planet gear 6068, torque speed sensor Ⅱ 607, motor bracket Ⅱ 608, load motor 609, support plate Ⅲ7, support plate Ⅱ8, acceleration sensor 9, support plate Ⅰ10, connecting fixture 11, push rod 1101, baffle 1102, spring 1103, cam 1104, wedge block 1105, guide 1106, electric vibrating table 12, vibrating table base 13 .

Detailed ways

The present invention will be further described below in conjunction with embodiments, but it should not be understood that the scope of the above-mentioned subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical idea of the present invention, various substitutions and changes based on common technical knowledge and conventional means in the field shall be included in the protection scope of the present invention.

Example 1:

This embodiment discloses an experimental system capable of simulating a gear drive non-inertial system environment, including a gear drive experiment table 6, a manual cross slide group 5, a linear motion platform 4, and an electric vibration table 12.

2 or 3, the gear transmission test bench 6 includes a drive motor 601, a motor support I 602, a coupling 603, a torque speed sensor I 604, an elastic shaft 605, a gear transmission system 606, a torque speed sensor II 607, a motor support II 608 and Load motor 609.

The driving motor 601 is installed on a motor support I602, and the driving motor 601 transmits power to the gear transmission system 606 through two couplings 603, a torque speed sensor I604, and an elastic shaft 605.

The load motor 609 is installed on the motor support II 608, and the load motor 609 applies the load torque to the gear transmission system 606 through the two couplings 603 and the torque speed sensor II 607. The gear transmission system 606 is located between the drive motor 601 and the load motor 609.

Referring to FIG. 6, in this embodiment, the transmission mode of the gear transmission system 606 is parallel shaft gear transmission. The gear transmission system 606 includes a bearing seat 6061, a driving wheel 6062, a bearing 6063 and a driven wheel 6064.

The manual cross slide group 5 includes a manual cross slide I501 and a manual cross slide II502. 2 or 3, the motor bracket I602 and the torque speed sensor I604 are fixed on the manual cross slide I501, the torque speed sensor I604 collects the input and output vibration signals of the driving motor 601 when it is running, and transmits the signals to the control system . The motor support II608 and the torque speed sensor II607 are both fixed on the manual cross slide II502. The torque speed sensor II607 collects the input and output vibration signals of the load motor 609 when it is running, and transmits the signals to the control system. By adjusting the positions of the drive motor 601 and the load motor 609 by the manual cross slide table I501 and the manual cross slide table II502, the gear transmission system 606 can perform experiments under different transmission ratios, which better meets the experimental requirements.

Referring to Figure 2, there is a gap S between the manual cross slide I501 and the manual cross slide II502, and the manual cross slide I501 and the manual cross slide II502 are both fixed on the support plate III7. The lower end of the gear transmission system 606 passes through the gap S and is fixed to the support plate III7.

Referring to Figure 1, the lower surface of the support plate III7 is connected with a linear motion platform 4, which includes a guide rail 401, a mover part 402, a stator part 403, a stop 404, a carriage 405 and a base 406, and a motion measurement system.

Referring to FIG. 2, the base 406 is a rectangular plate fixed on the supporting plate II8, and the length direction of the base 406 is the moving direction of the linear motion platform 4.

2 or 4, the base 406 is provided with an induction strip 407 of the motion measurement system on the side wall along its length direction, and the upper surface of the base 406 is provided with two guide rails 401, a stator part 403 and two stoppers 404. The stator part 403 is in the shape of a rectangular plate. The guide rails 401 and the stator part 403 are arranged along the length of the base 406. The stator part 403 is located between the two guide rails 401, and the height of the guide rail 401 is smaller than the height of the stator part 403. The two stoppers 404 are respectively located at two ends of the base 406, and the stoppers 404 can prevent the carriage 405 from moving beyond the range and causing accidents.

The sliding frame 405 includes a sliding plate and four sliding rods under the sliding plate. The upper surface of the sliding plate is connected with the supporting plate III7, and the lower surface is provided with a mover part 402 which is located directly above the stator part 403. The lower ends of the four sliding rods are inlaid and matched with the two guide rails 401, so that the sliding frame 405 moves linearly along the guide rail 401 on the horizontal plane.

A sensor 408 of a motion measurement system is arranged on a side wall of the sliding rod facing the sensor bar 407. When the sliding frame 405 moves, the sensor 408 of the motion measurement system and the sensor bar 407 sense each other to measure the position and speed of the sliding frame 405. And error, the motion measurement system transmits the measurement result to the control system.

A support plate II8 is connected to the lower end of the linear motion platform 4, and the support plate II8 is fixed on the upper surface of the support plate I10.

Referring to Fig. 1, the supporting plate I10 is a rectangular plate, the upper surface of the supporting plate I10 is provided with an acceleration sensor 9, and the two ends of the supporting plate I10 are respectively marked as the A end and the B end. The supporting plate II8 is fixed on the upper surface of the supporting plate I10A end, and the vertical shaft 3 is connected to the lower surface of the supporting plate I10A end. The lower end of the vertical shaft 3 is connected with a horizontal shaft 2, and the horizontal shaft 2 is fixed on the turntable base 1.

Referring to FIG. 2, the rotation axes of the driving motor 601, the load motor 609, and the horizontal shaft 2 are all parallel to the moving direction of the linear motion platform 4. Referring to FIG. 1, the connecting line between the A end and the B end of the supporting plate I10 is perpendicular to the rotation axis of the horizontal shaft 2.

Referring to Fig. 1, a connecting clamp 11 is provided on the lower surface of the end of the supporting plate I10B, and the connecting clamp 11 is a rigid connecting rod. The lower end of the connecting clamp 11 is connected with the electric vibrating table 12, and the electric vibrating table 12 is fixed on the base 13 of the vibrating table.

When working, the electric vibrating table 12 drives the supporting plate I10 to rotate around the horizontal axis 2 through the connecting fixture 11, and the linear motion platform 4 and the gear transmission experiment table 6 mounted on the supporting plate I10 rotate together with the supporting plate I10 around the horizontal axis 2 .

Example 2:

Referring to FIG. 7, in this embodiment, the transmission mode of the gear transmission system 606 is planetary gear transmission. The gear transmission system 606 includes a ring gear 6065, a sun gear 6066, a planet carrier 6067, and a planet gear 6068.

2 or 4, the base 406 is provided with an induction strip 407 of the motion measurement system on the side wall along its length direction, and the upper surface of the base 406 is provided with two guide rails 401, a stator part 403 and two stoppers 404. The stator part 403 has a rectangular plate shape. The guide rails 401 and the stator part 403 are arranged along the length of the base 406. The stator part 403 is located between the two guide rails 401. The height of the guide rail 401 is smaller than the height of the stator part 403. The two stoppers 404 are respectively located at two ends of the base 406, and the stoppers 404 can prevent the carriage 405 from moving beyond the range and causing accidents.

Referring to FIG. 1, a connecting clamp 11 is provided on the lower surface of the end of the supporting plate I10B. Referring to FIG. 5, the connecting fixture 11 includes a push rod 1101, a spring 1103, a cam 1104, a wedge block 1105 and a guide 1106.

The push rod 1101 is an L-shaped rod. The push rod 1101 includes a support rod I and a support rod II that are vertically connected, and the free end of the support rod I is connected to the lower surface of the end of the support plate I10B. The supporting rod II is parallel to the rotation axis of the horizontal shaft 2, the free end of the supporting rod II is connected with a baffle 1102, and the plate of the baffle 1102 away from the supporting rod II is hinged with a cam 1104.

Referring to FIG. 5, a guide 1106 is fixedly arranged above and below the supporting rod II, and the supporting rod II moves horizontally along the guide 1106. A spring 1103 is connected between the two guides 1106 and the baffle 1102.

The contour edge of the cam 1104 is in contact with the wedge surface of the wedge block 1105, the lower end of the wedge block 1105 is fixed on the electric vibration table 12, and the electric vibration table 12 is fixed on the vibration table base 13.

1, when working, the electric vibrating table 12 outputs a sinusoidal excitation in the vertical direction, the wedge block 1105 moves up and down together with the electric vibrating table 12, when the wedge block 1105 moves upwards, the wedge block 1105 passes through the cam 1104 and the push rod 1101 pushes the support plate I10 to rotate counterclockwise around the vertical axis 3, and the spring 1103 is compressed. When the wedge block 1105 moves downward, the push rod 1101 moves in the opposite direction under the action of the spring 1103, and at the same time pulls the support plate I10 to rotate clockwise around the vertical axis 3;

The linear motion platform 4 and the gear transmission experiment table 6 installed on the supporting plate I10 rotate together with the supporting plate I10 around the vertical axis 3.

Example 3:

The experimental method of using the experimental system described in Example 1 to simulate the non-inertial system environment of a gear drive linear acceleration includes the following steps:

2) Debug the gear transmission test bench 6, energize the drive motor 601, and control the gear transmission system 606 to slowly increase the speed to a certain safe speed; energize the load motor 609, and control the gear transmission system 606 to slowly load to a certain safety. Load torque; confirm that the gear transmission system 606 can rotate normally, and observe whether the signal output of the torque speed sensor I 604 and the torque speed sensor II 607 is normal.

3) Debug the linear motion platform 4, energize the stator part 403, the excitation magnetic field and the traveling wave magnetic field interact to generate electromagnetic thrust, the electromagnetic thrust drives the mover part 402 to accelerate, and the mover part 402 drives the carriage 405 to accelerate along the guide rail 401 To a certain safe acceleration; confirm that the carriage 405 can move normally, and the signal output of the motion measurement system is normal.

4) Start the drive motor 601, and slowly increase the speed of the gear transmission system 606 to the speed required by the experiment. The load motor 609 is started, and the load motor 609 loads the gear transmission system 606 with the load torque required by the experiment.

5) The stator part 403 is energized, and the carriage 405 is controlled to accelerate along the guide rail 401 to the acceleration required by the experiment. The support plate III7 and the gear transmission test bench 6 installed on the carriage 405 will accelerate linearly along with the carriage 405.

6) During linear acceleration, record the dynamic response of the gear transmission system 606.

7) Repeat steps 5) and 6), adjust the acceleration of the linear motion platform 4 through the control system, and record the dynamic response of the gear transmission system 606 under different linear acceleration non-inertial system environments under the same working condition.

8) Repeat steps 3), 4), 5) and 6), adjust the speed of the drive motor 601, the load of the load motor 609 and the acceleration of the linear motion platform 4 through the control system, and record the gear transmission system under different working conditions The dynamic response of 606 under different linear acceleration non-inertial system environment.

9) Shut down in accordance with the experimental equipment operating procedures.

Example 4:

The experimental method of using the experimental system described in Example 1 to simulate the environment of the gear drive supine non-inertial system includes the following steps:

1) Connect the experimental equipment, ensure that the connection of each component is stable, and ensure that the vibration test system is well connected.

3) Debug the rotary motion turntable, energize the electric vibrating table 12, control the electric vibrating table 12 to output a sinusoidal excitation in the vertical direction, and the connecting fixture 11 will transmit the excitation to the support plate I10, and the support plate I10 will rotate around the horizontal axis 2; It is confirmed that the support plate I10 can normally rotate around the horizontal axis 2 and the signal output of the acceleration sensor 9 is normal.

5) The electric vibrating table 12 is energized, and the electric vibrating table 12 is controlled to output the excitation required by the experiment. The linear motion platform 4 and the gear transmission experiment table 6 installed on the supporting plate I10 will rotate around the horizontal axis 2 together with the supporting plate I10. .

6) During the rotation of the supporting plate I10, record the dynamic response of the gear transmission system 606.

7) Repeat steps 4) and 5), adjust the size and type of excitation output by the electric vibrating table 12 through the control system, and record the dynamic response of the gear transmission system 606 under the same working condition under different pitch non-inertial environment .

8) Repeat steps 3), 4), 5) and 6), adjust the speed of the drive motor 601, the load of the load motor 609, and the size and type of excitation output by the electric vibrating table 12 through the control system, and record different working conditions The dynamic response of the lower gear transmission system 606 under different pitch non-inertial system environments.

Example 5:

The experimental method of using the experimental system described in Example 2 to simulate the non-inertial system environment of gear transmission yaw includes the following steps:

3) Debug the rotary motion turntable, energize the electric vibrating table 12, control the electric vibrating table 12 to output a sinusoidal excitation in the vertical direction, the wedge block 1105 will move up and down together with the electric vibrating table 12; the wedge block 1105 moves upwards When the cam 1104 moves the push rod 1101 horizontally along the guide 1106, the push rod 1101 will drive the support plate I10 to rotate counterclockwise around the vertical axis 3; when the wedge block 1105 moves downwards, the push rod 1101 is under the action of the spring 1103. Bring the cam 1104 to move in the opposite direction along the guide 1106, and at the same time drive the support plate I10 to rotate clockwise around the vertical axis 3; confirm that the support plate I10 can rotate normally around the vertical axis 3, and observe whether the signal output of the acceleration sensor 9 is normal.

5) The electric vibrating table 12 is energized, and the electric vibrating table 12 is controlled to output the excitation required by the experiment. The linear motion platform 4 and the gear transmission test table 6 installed on the supporting plate I10 will rotate around the vertical axis 3 together with the supporting plate I10. .

8) Repeat steps 3), 4), 5) and 6), adjust the speed of the drive motor 601, the load of the load motor 609, and the size and type of excitation output by the electric vibrating table 12 through the control system, and record different working conditions The dynamic response of the lower gear transmission system 606 under different yaw non-inertial system environments.

In the present invention, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention; at the same time, for those of ordinary skill in the art, according to this The idea of the invention will change in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as a limitation of the present invention.

Claims

An experimental system capable of simulating a gear drive non-inertial system environment, which is characterized in that it includes a gear drive experiment table (6), a manual cross slide group (5), a linear motion platform (4) and an electric vibration table (12);

The gear transmission test bench (6) includes a drive motor (601), a motor support I (602), a coupling (603), a torque speed sensor I (604), an elastic shaft (605), and a gear transmission system (606) , Torque speed sensor II (607), motor bracket II (608) and load motor (609);

The driving motor (601) is installed on the motor support I (602), and the driving motor (601) transmits power to the gear through two couplings (603), torque speed sensor I (604), and elastic shaft (605) Transmission system (606);

The load motor (609) is installed on the motor support II (608), and the load motor (609) applies the load torque to the gear transmission system (606) through two couplings (603) and a torque speed sensor II (607). ) On; the gear transmission system (606) is located between the drive motor (601) and the load motor (609);

The manual cross slide group (5) includes a manual cross slide I (501) and a manual cross slide II (502); the motor bracket I (602) and the torque speed sensor I (604) are both fixed on the manual cross slide On the sliding table I (501), the torque speed sensor I (604) collects the input and output vibration signals of the driving motor (601) when it is running, and transmits the signals to the control system; the motor support II (608) and the torque speed sensor Ⅱ (607) are fixed on the manual cross slide Ⅱ (502), the torque speed sensor Ⅱ (607) collects the input and output vibration signals of the load motor (609) when it is running, and transmits the signals to the control system;

There is a gap S between the manual cross slide I (501) and the manual cross slide II (502). The manual cross slide I (501) and the manual cross slide II (502) are both fixed on the support plate III (7). ) Upper; The lower end of the gear transmission system (606) passes through the gap S and is fixed to the support plate Ⅲ (7);

The lower surface of the support plate Ⅲ (7) is connected with a linear motion platform (4). The linear motion platform (4) is provided with a motion measurement system for measuring its position, speed and error, and the motion measurement system transmits the measurement results To the control system; the lower end of the linear motion platform (4) is connected with a supporting plate II (8), and the supporting plate II (8) is fixed on the upper surface of the supporting plate I (10);

The supporting plate I (10) is a rectangular plate, the upper surface of the supporting plate I (10) is provided with an acceleration sensor (9), and the two ends of the supporting plate I (10) are respectively marked as ends A and B; Plate II (8) is fixed on the upper surface of end A of support plate I (10), the lower surface of end A of support plate I (10) is connected with a vertical shaft (3); the lower end of said vertical shaft (3) is connected with a horizontal shaft ( 2), the horizontal shaft (2) is fixed on the turntable base (1);

The rotation axes of the drive motor (601), the load motor (609), and the horizontal shaft (2) are all parallel to the direction of movement of the linear motion platform (4); the connection between the A and B ends of the support plate I (10) The axis of rotation perpendicular to the horizontal axis (2);

A connecting clamp (11) is provided on the lower surface of the end B of the supporting plate I (10), and the connecting clamp (11) is a rigid connecting rod; the lower end of the connecting clamp (11) is connected with an electric vibrating table (12), which is electrically vibrated The table (12) is fixed on the base (13) of the vibrating table;

When working, the electric vibrating table (12) drives the supporting plate I (10) to rotate around the horizontal axis (2) through the connecting fixture (11), and the linear motion platform (4) and gears installed on the supporting plate I (10) The transmission experiment table (6) rotates around the horizontal axis (2) along with the supporting plate I (10).
An experimental system capable of simulating a gear drive non-inertial system environment, which is characterized in that it includes a gear drive experiment table (6), a manual cross slide group (5), a linear motion platform (4) and an electric vibration table (12);

The gear transmission test bench (6) includes a drive motor (601), a motor support I (602), a coupling (603), a torque speed sensor I (604), an elastic shaft (605), and a gear transmission system (606) , Torque speed sensor II (607), motor bracket II (608) and load motor (609);

The driving motor (601) is installed on the motor support I (602), and the driving motor (601) transmits power to the gear through two couplings (603), torque speed sensor I (604), and elastic shaft (605) Transmission system (606);

The load motor (609) is installed on the motor support II (608), and the load motor (609) applies the load torque to the gear transmission system (606) through two couplings (603) and a torque speed sensor II (607). ) On; the gear transmission system (606) is located between the drive motor (601) and the load motor (609);

The manual cross slide group (5) includes a manual cross slide I (501) and a manual cross slide II (502); the motor bracket I (602) and the torque speed sensor I (604) are both fixed on the manual cross slide On the sliding table I (501), the torque speed sensor I (604) collects the input and output vibration signals of the driving motor (601) when it is running, and transmits the signals to the control system; the motor support II (608) and the torque speed sensor Ⅱ (607) are fixed on the manual cross slide Ⅱ (502), the torque speed sensor Ⅱ (607) collects the input and output vibration signals of the load motor (609) when it is running, and transmits the signals to the control system;

There is a gap S between the manual cross slide I (501) and the manual cross slide II (502). The manual cross slide I (501) and the manual cross slide II (502) are both fixed on the support plate III (7). ) Upper; The lower end of the gear transmission system (606) passes through the gap S and is fixed to the support plate Ⅲ (7);

The lower surface of the support plate Ⅲ (7) is connected with a linear motion platform (4). The linear motion platform (4) is provided with a motion measurement system for measuring its position, speed and error, and the motion measurement system transmits the measurement results To the control system; the lower end of the linear motion platform (4) is connected with a supporting plate II (8), and the supporting plate II (8) is fixed on the upper surface of the supporting plate I (10);

The supporting plate I (10) is a rectangular plate, the upper surface of the supporting plate I (10) is provided with an acceleration sensor (9), and the two ends of the supporting plate I (10) are respectively marked as ends A and B; Plate II (8) is fixed on the upper surface of end A of support plate I (10), the lower surface of end A of support plate I (10) is connected with a vertical shaft (3); the lower end of said vertical shaft (3) is connected with a horizontal shaft ( 2), the horizontal shaft (2) is fixed on the turntable base (1);

The rotation axes of the drive motor (601), the load motor (609), and the horizontal shaft (2) are all parallel to the direction of movement of the linear motion platform (4); the connection between the A and B ends of the support plate I (10) The axis of rotation perpendicular to the horizontal axis (2);

The lower surface of the end B of the supporting plate I (10) is provided with a connecting clamp (11). The connecting clamp (11) includes a push rod (1101), a spring (1103), a cam (1104), a wedge block (1105) and a guide. (1106);

The push rod (1101) is an L-shaped rod, and the push rod (1101) includes a support rod I and a support rod II that are vertically connected, and the free end of the support rod I is connected to the lower surface of the end B of the support plate I (10); The support rod II is parallel to the rotation axis of the horizontal shaft (2), the free end of the support rod II is connected with a baffle plate (1102), and the plate of the baffle plate (1102) away from the support rod II is hinged with a cam (1104);

A guide (1106) is fixedly arranged above and below the supporting rod II, and the supporting rod II moves horizontally along the guide (1106); the two guides (1106) and the baffle (1102) are equally spaced between the two guides (1106) and the baffle (1102). Connected with a spring (1103);

The contour edge of the cam (1104) is in contact with the wedge-shaped surface of the wedge block (1105), the lower end of the wedge block (1105) is fixed on the electric vibrating table (12), and the electric vibrating table (12) is fixed on the vibrating table base ( 13) on;

When working, the electric vibrating table (12) outputs a sinusoidal excitation in the vertical direction. The wedge block (1105) moves up and down together with the electric vibrating table (12). When the wedge block (1105) moves upward, the wedge block (1105) The support plate I (10) is pushed to rotate counterclockwise around the vertical axis (3) through the cam (1104) and the push rod (1101), and the spring (1103) is gradually compressed; when the wedge block (1105) moves downward, the push rod ( 1101) and the baffle (1102) move in the opposite direction under the action of the elastic force of the spring (1103), and at the same time pull the support plate I (10) to rotate clockwise around the vertical axis (3);

The linear motion platform (4) and the gear transmission experiment table (6) installed on the supporting plate I (10) rotate around the vertical axis (3) together with the supporting plate I (10).
An experimental system capable of simulating a gear transmission non-inertial system environment according to claim 1 or 2, characterized in that the transmission mode of the gear transmission system (606) is parallel shaft gear transmission or planetary gear transmission.
An experimental system capable of simulating a gear drive non-inertial system environment according to claim 1 or 2, characterized in that: the linear motion platform (4) includes a guide rail (401), a mover part (402), and a stator part (403), the stop (404), the carriage (405) and the base (406) and the motion measurement system; the base (406) is a rectangular plate fixed on the support plate II (8), the base (406) The length direction is the direction of motion of the linear motion platform (4);

The base (406) is provided with a motion measurement system induction strip (407) on the side wall along its length direction, and the upper surface of the base (406) is provided with two guide rails (401), a stator part (403) and two Stopper (404); the stator part (403) is in the shape of a rectangular plate, the guide rail (401) and the stator part (403) are arranged along the length of the base (406), and the stator part (403) is located on the two guide rails (401) ), the height of the guide rail (401) is smaller than the height of the stator part (403); the two stoppers (404) are respectively located at two ends of the base (406);

The sliding frame (405) includes a sliding plate and four sliding rods under the sliding plate. The upper surface of the sliding plate is connected with the supporting plate III (7), and the lower surface is provided with a mover part (402), and the mover part (402) is located in the stator part. (403); the lower ends of the four sliding rods are inlaid and matched with the two guide rails (401), so that the carriage (405) moves linearly on the horizontal plane along the guide rails (401);

A sensor (408) of the motion measurement system is arranged on the side wall of one of the sliding rods facing the sensor strip (407). When the carriage (405) moves, the sensor (408) of the motion measurement system and the sensor strip (407) interact with each other. Induction, measure the position, speed and error of the carriage (405).
The experimental method for simulating a gear drive linear acceleration non-inertial system environment using the experimental system of claim 1, characterized in that it comprises the following steps:

1) Connect the experimental equipment to ensure that the connection of each part is stable;

2) Debug the gear transmission test bench (6) and the linear motion platform (4) to ensure the normal operation of the gear transmission test bench (6) and the linear motion platform (4);

3) Start the drive motor (601), and gradually increase the speed of the gear transmission system (606) to the speed required by the experiment; start the load motor (609), and the load motor (609) loads the gear transmission system (606) The load torque required by the experiment;

4) Start the linear motion platform (4) to accelerate to the acceleration required by the experiment, and the linear motion platform (4) drives the support plate Ⅲ (7) and the gear transmission test bench (6) for linear acceleration;

5) During linear acceleration, record the dynamic response of the gear transmission system (606);

6) Repeat steps 4) and 5), adjust the acceleration of the linear motion platform (4) through the control system, and record the dynamic response of the gear transmission system (606) under the same working condition under different linear acceleration non-inertial system environments ；

7) Repeat steps 3), 4), 5) and 6), adjust the rotation speed of the drive motor (601), the load of the load motor (609) and the acceleration of the linear motion platform (4) through the control system, and record the different work The dynamic response of the gear transmission system (606) under different linear acceleration non-inertial system environments.
The experimental method for simulating a gear transmission pitching non-inertial system environment using the experimental system of claim 1, characterized in that it comprises the following steps:

1) Connect the experimental equipment to ensure that the connection of each part is stable;

2) Debug the gear transmission test bench (6) and the electric vibration table (12) to ensure the normal operation of the gear transmission test bench (6), and ensure that the support plate I (10) rotates normally around the horizontal axis (2);

3) Start the drive motor (601), and gradually increase the speed of the gear transmission system (606) to the speed required by the experiment; start the load motor (609), and the load motor (609) loads the gear transmission system (606) The load torque required by the experiment;

4) Start the electric vibrating table (12), the electric vibrating table (12) outputs the excitation required by the experiment, and the linear motion platform (4) installed on the support plate I (10) and the gear transmission test table (6) are supported The plate I (10) rotates around the horizontal axis (2) together;

5) During the rotation of the supporting plate I (10), record the dynamic response of the gear transmission system (606);

6) Repeat steps 4) and 5), adjust the size and type of excitation output by the electric vibrating table (12) through the control system, and record the gear transmission system (606) under the same working condition under different pitch non-inertial environment The dynamic response;

7) Repeat steps 3), 4), 5) and 6), and adjust the speed of the drive motor (601), the load of the load motor (609), and the magnitude of the excitation output from the electric vibrating table (12) through the control system Type, record the dynamic response of the gear transmission system (606) in different pitching non-inertial environment under different working conditions.
The experimental method for simulating gear transmission yaw non-inertial system environment by using the experimental system of claim 2, characterized in that it comprises the following steps:

1) Connect the experimental equipment to ensure that the connection of each part is stable;

2) Debug the gear transmission test bench (6) and the electric vibration table (12) to ensure the normal operation of the gear transmission test bench (6), and ensure the normal rotation of the support plate I (10) around the vertical axis (3);

3) Start the drive motor (601), and gradually increase the speed of the gear transmission system (606) to the speed required by the experiment; start the load motor (609), and the load motor (609) loads the gear transmission system (606) The load torque required by the experiment;

4) Start the electric vibrating table (12), the electric vibrating table (12) outputs the excitation required by the experiment, and the linear motion platform (4) installed on the support plate I (10) and the gear transmission test table (6) are supported The plate I (10) rotates around the vertical axis (3) together;

5) Record the dynamic response of the gear transmission system (606) during rotation;

6) Repeat steps 4) and 5), adjust the excitation type and size of the electric vibrating table (12) through the control system, and record the gear transmission system (606) under the same working condition under different yaw non-inertial environment Dynamic response

7) Repeat steps 3), 4), 5) and 6), and adjust the speed of the drive motor (601), the load of the load motor (609), and the magnitude of the excitation output from the electric vibrating table (12) through the control system Type, record the dynamic response of the gear transmission system (606) under different yaw non-inertial system environments under different working conditions.